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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Waymo logo
Waymo
Medium
Software Engineer

Find Shortest Paths to Target Nodes

You are given a weighted directed graph representing distances between nodes. - There are n nodes labeled from 0 to n - 1. - edges[i] = [u, v, w] mean...

Coding & Algorithms
9
0
107 people solved
Apr 8, 2026
Asana logo
Asana
Medium
Software Engineer

Answer Manager Behavioral Prompts

In a hiring-manager interview, prepare concise STAR-style answers for the following prompts: 1. Describe a significant project you led or contributed ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
26
0
213 people solved
Apr 2, 2026
Meta logo
Meta
Medium
Product Manager

Flagging Underperforming Meta Ads and Quantifying Their Impact

You are a product manager working on ads at Meta. Which metrics would you use to spot ads that are performing badly, and how would you measure the eff...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
1
0
11 people solved
Jul 15, 2026
Squarepoint logo
Squarepoint
Medium
Risk Technology Software EngineerSenior+ Locked

Explain Weak Pointers and Sketch Shared-Pointer Control-Block Semantics

Compare unique, shared, and weak C++ ownership while sketching control-block counts, copy and destruction behavior, race-safe weak locking, cycle brea...

Software Engineering Fundamentals
5
0
36 people solved
Aug 16, 2026
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer

Count substrings and generate TOC

Solve the following two coding problems. 1. Count valid binary substrings Given a string s consisting only of '0' and '1', count how many substrings s...

Coding & Algorithms
11
0
99 people solved
Jan 13, 2026
Appian logo
AppianAmazoneBay
Easy
Software Engineer

Can One Removal Restore Strict Order?

Problem Return whether removing exactly one element from nums can leave its remaining elements in strictly increasing order. Equality does not satisfy...

Coding & AlgorithmsArrays & StringsGreedy
0
0
9 people solved
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Count the Ways to Split a Digit String into Primes

This question evaluates dynamic programming combined with number theory, specifically counting valid partitions of a digit string under a primality co...

Coding & Algorithms
10
0
69 people solved
Jun 30, 2026
Snowflake logo
Snowflake
Easy
Software Engineer Locked

Design a disk-backed KV store under contention

This question evaluates systems-design and concurrency engineering skills, specifically the ability to reason about durable on-disk storage, indexing ...

System DesignKey-Value StoresConcurrency
85
0
590 people solved
Mar 1, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Data Scientist Locked

Resolve Two Knights-and-Knaves Statements

Resolve a two-person knights-and-knaves puzzle through complete case analysis. The solution shows that assigning A as a knight and B as a knave is con...

Statistics & Math
2
0
21 people solved
Aug 16, 2026
Wayve logo
Wayve
Easy
Software Engineer

Repair Unsafe C++ Ownership with Smart Pointers

Repair Unsafe C++ Ownership with Smart Pointers Review this ownership sketch: `cpp class Engine { public: void start(); }; class Controller { ...

Software Engineering Fundamentals
10
1
141 people solved
Apr 9, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Implement a versioned recipe management system

You are asked to implement an in-memory Recipe Management System (similar in difficulty to a simple banking/in-memory DB exercise). The system support...

Coding & AlgorithmsLow-Level Design (OOP)
29
0
344 people solved
Nov 23, 2025
Palo Alto Networks logo
Palo Alto Networks
Medium
Software Engineer

Design a Scheduler and Metrics Platform

Design a cloud-native job scheduling and metrics monitoring platform for a Kubernetes-like environment. The platform should allow internal users to su...

System Design
12
0
119 people solved
Feb 20, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Detect and Break a Cycle in a Singly Linked List

This question tests practical knowledge of linked list traversal and pointer manipulation, specifically the ability to detect and resolve cycles using...

Coding & Algorithms
6
0
84 people solved
Jun 15, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design a Distributed Crossword Solver

This question evaluates proficiency in constraint-solving algorithms and distributed system architecture, including data representation, efficient sea...

System DesignSystem Design FundamentalsBacktracking & Recursion
31
0
451 people solved
Apr 7, 2026
Amazon logo
AmazonGoogleMeta
Hard
Software Engineer

Stack Rotatable Cuboids for Maximum Height

Problem Choose a subset of cuboids and orient each by permuting its three dimensions. A cuboid may sit on another only when its width, length, and hei...

Coding & AlgorithmsDynamic ProgrammingSorting
1
0
11 people solved
Instacart logo
Instacart
Medium
Machine Learning Engineer

Build a Grocery Search and Ranking Pipeline from Cold Start

Design a grocery search and ranking system from an initial cold-start product through a more mature learned pipeline. Explain the major components and...

Machine LearningSearch RelevanceRanking Models
0
0
7 people solved
Jul 15, 2026
Google logo
Google
Medium
Software Engineer Locked

Boolean Expression Tree with Leaf Flips

This question evaluates a candidate's ability to work with tree data structures and apply efficient update propagation techniques. It tests practical ...

Coding & Algorithms
17
2
142 people solved
Jun 9, 2026
Waymo logo
Waymo
Easy
Data Scientist

Implement K-means and handle train-inference mismatch

Part A — K-means (implementation + concepts) You are given a dataset \(X \in \mathbb{R}^{n \times d}\) and an integer \(k\). 1. Explain K-means: what ...

Machine LearningUnsupervised LearningML Coding
31
0
443 people solved
Dec 6, 2025
Ramp logo
Ramp
Medium
Frontend Engineer Locked

Build a Wordle-Style Game in React

Build a five-guess Wordle-style game in React with clean state ownership and terminal win or loss behavior. Cover duplicate-letter scoring, keyboard i...

Software Engineering FundamentalsReact & UI FrameworksState Management
13
0
191 people solved
Jul 17, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Implement Social Graph Snapshot Queries

This question evaluates understanding of graph data structures, query-efficient indexing, and algorithmic trade-offs for static directed graphs, inclu...

Coding & AlgorithmsGraphsData Structure Design
12
0
154 people solved
Apr 13, 2026
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